Improvement in regulators for gas-burners



Patented Oct. 23,1817;

m'vmon Q WlTNESSES N. FETERS, FHOTO L1THOGRAPMER WASHINGTON. D, C.

UNITED STATES PATENT OFFICE.

GEORGE L. SHEPARD, OF NEW YORK, N. Y.

IMPROVEMENT IN REGULATORS FOR GAS-BURNERS.

Specification forming part of Letters Patent No. 196,489, dated October23, 1877; application filed August 15, 1877.

the well-known gas-burner, with a view of economizing in the consumptionof gas.

The nature of my invention consists in combining, with a gas-burner, agrooved automatically-regulating valve and a pin which will check thesaid valve in its upward strokes, as

will be hereinafter explained.

In the annexed drawing, Figure 1 represents a vertical section through agas-burner improved by me. Fig. 2 is a side view of the lower section ofthe gas-burner with my valve applied to it. Fig. 3 shows the Valve whichI use, in combination with a two-part gasburner.

Similar letters of reference indicate corresponding parts. The letter Adesignates the upper section of a two-part gas-burner, which section maybe adapted to give any form of flame. B designates the lower section ofthe burner, having a male screw formed on it to receive the uppersection A, and a shoulder a, I may in practice use as a washer. Theupper end of the lower section is flat, and forms a seat adapted toreceive a valve, 0, that may be beveled annularly, which may be flat, orit maybe spherical or of any other shape which will effect the object inview. To wit, this valve 0 is constructed-with a guide, D, which may beof any desired length, and which extends down into the bore of the lowersection B, leaving between the periphery of the guide and theinner wallof the bore a space for the passage of gas up to said valve. This spacemay vary in size, according to the head or pressure of gas.

In practice I shall form an annular or a spiral flange orthread, a, onthe stem of the valve, leaving a groove, in which is a pin or stud, d.The annular or spiral groove is of. such size that it will allow thevalve 0 to receive automatically a vertical motion, and adjust itself tothe varying pressure, thereby enabling me to regulate the size of thevent at pleasure. At the same time I allow free vertical motion to myvalve, limited only by the aforesaidflange.

I have represented in the drawings a gimlet-pointed screw-flange-that isto say, the stem of the valve is tapered at its lower end; but I do notconfine myself to a stem having a thread of this form; neither do Iconfine myself to a valve stem or guide, D, which is flanged, as suchguide may be formed without a flange.

What I claim is-- In a gas burner or regulator, avalve having a stem orguide, I), which is grooved, in combination with a stud, d, which willregulate the upward throw of the valve, substantially in the mannerspecified.

GEORGE L. SHEPARD.

Witnesses:

BENJ. F. CARPENTER, E. F. HURD.

